"which personality disorder describes someone who has a history of unstable relationships, a diffuse and unreliable sense of identity, chronic feelings of emptiness, and a history of suicidal thoughts and gestures?

Borderline personality disorder

Explanation:

Borderline personality disorder: The borderline personality disorder is also referred to as BPD and is considered to be a serious mental illness. The disorder is often described as experiencing emotional difficulties. An individual dealing with BPD usually feels emotions for an extended period and intensely and it is often difficult for them to come back to normal after encountering an emotionally triggering situation or event.

Symptoms:

1. Feelings of self-destruction.

2. Self-harm.

3. Impulsive behavior.

4. Intense anger and fear.

5. Fear of abandonment.

you should try adrenaline. it kicks in in situations like this.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -